& \multicolumn{4}{c}{ Z-score index } & \multicolumn{4}{c}{ First principal component } \\
\cmidrule(lr{1em}){2-5} \cmidrule(lr{1em}){6-9} 
& (1) & (2) & (3) & (4) & (5) & (6) & (7) & (8) \\ \midrule
\hspace{0.2cm} $\widehat{\text{Preferred}}$&    -0.07&    -0.05&    -0.02&    -0.02&    -0.07&    -0.05&    -0.02&    -0.02\\
                &$\left[\text{0.67}\right]$&$\left[\text{0.71}\right]$&$\left[\text{0.89}\right]$&$\left[\text{0.85}\right]$&$\left[\text{0.67}\right]$&$\left[\text{0.71}\right]$&$\left[\text{0.89}\right]$&$\left[\text{0.85}\right]$\\
\midrule Weights& $\times$&$\checkmark$& $\times$&         & $\times$&$\checkmark$& $\times$&         \\
Region FE       & $\times$& $\times$&$\checkmark$&$\checkmark$& $\times$& $\times$&$\checkmark$&$\checkmark$\\
DV Mean         &    -0.01&    -0.01&    -0.01&    -0.01&    -0.01&    -0.01&    -0.01&    -0.01\\
DV SD           &     0.97&     0.97&     0.97&     0.97&     0.97&     0.97&     0.97&     0.97\\
FS F-statistic  &     11.0&     11.3&     13.3&     13.4&     11.0&     11.3&     13.3&     13.4\\
Observations    &    7,543&    7,543&    7,543&    7,543&    7,543&    7,543&    7,543&    7,543\\
